Cita APA (7a ed.)

Robertson, E., & Bonhoeffer, D. (1988). The Life and Martyrdom of Detrich Bonhoeffer. Collier Books.

Cita Chicago Style (17a ed.)

Robertson, Edwin, y Dietrich Bonhoeffer. The Life and Martyrdom of Detrich Bonhoeffer. New York: Collier Books, 1988.

Cita MLA (9a ed.)

Robertson, Edwin, y Dietrich Bonhoeffer. The Life and Martyrdom of Detrich Bonhoeffer. Collier Books, 1988.